国泰君安证券与海通证券并购分析
1 济南大学，山东济南，250000；
2 澳门大学，中国澳门，999078；
3 广东培正学院，广东广州，510800；
摘要：国泰君安证券与海通证券合并重组可以称得上是近几年来行业内的重大事件，这意味着国内将涌现一家规模庞大的证券公司，该公司将有望超越当前国内排名第一的券商，跻身行业首位。本文针对此次合并事件，对合并动因及市场影响进行深入剖析。本文基于协同效应理论与事件研究法，对合并公告日前后3个交易日及5个交易日的异常收益率和累计异常收益率展开分析，进而探究短期内市场对此次合并事件的反馈。
关键词：企业并购；协同效应；事件研究法
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